BR9509306A - Ventilation device with rotary drag compressor to ventilate lungs of mammalian patient drag compressor exhalation valve to control expiratory gas flow process to provide pulmonary ventilation ventilation device with rotary drag compressor to distribute inspiratory gas flow device exhalation valve for mixing oxygen and flow transducer for measuring fluid flow rate - Google Patents

Ventilation device with rotary drag compressor to ventilate lungs of mammalian patient drag compressor exhalation valve to control expiratory gas flow process to provide pulmonary ventilation ventilation device with rotary drag compressor to distribute inspiratory gas flow device exhalation valve for mixing oxygen and flow transducer for measuring fluid flow rate

Info

Publication number
BR9509306A
BR9509306A BR9509306A BR9509306A BR9509306A BR 9509306 A BR9509306 A BR 9509306A BR 9509306 A BR9509306 A BR 9509306A BR 9509306 A BR9509306 A BR 9509306A BR 9509306 A BR9509306 A BR 9509306A
Authority
BR
Brazil
Prior art keywords
exhalation valve
gas flow
drag compressor
expiratory gas
diaphragm
Prior art date
Application number
BR9509306A
Other languages
Portuguese (pt)
Inventor
Douglas F Devries
Michael J Cegielski
Warner V Graves Jr
Malcolm R Williams
Michael B Holmes
Original Assignee
Bird Products Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39737655&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9509306(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bird Products Corp filed Critical Bird Products Corp
Publication of BR9509306A publication Critical patent/BR9509306A/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/206—Capsule valves, e.g. mushroom, membrane valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
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    • A61M16/0069—Blowers or centrifugal pumps the speed thereof being controlled by respiratory parameters, e.g. by inhalation
    • A—HUMAN NECESSITIES
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
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    • A61M16/1015—Preparation of respiratory gases or vapours with O2 features or with parameter measurement using a gas flush valve, e.g. oxygen flush valve
    • A—HUMAN NECESSITIES
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    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/40—Details of construction of the flow constriction devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
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    • G01F1/42—Orifices or nozzles
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    • A61M2230/46—Resistance or compliance of the lungs

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Emergency Medicine (AREA)
  • Veterinary Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Control Of Eletrric Generators (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Saccharide Compounds (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

An exhalation valve for controlling the expiratory gas flow from a mammalian patient, said exhalation valve comprising:a housing defining an expiratory gas flow passageway therethrough;a valve seat formed within said expiratory gas flow passageway;an annular diaphragm movably disposed within said gas flow passageway, in juxtaposition to said valve seat, said diaphragm being variably movable back and forth to various positions between and including:i) a fully closed position wherein said diaphragm is firmly seated against said valve seat to prevent gas from flowing through said passageway; andii) a fully open position wherein said diaphragm is retracted away from said annular valve seat so as to permit substantially unrestricted flow of expiratory gas through said pathway;an elongate actuation shaft having a proximal end and a distal end, the distal end of said actuation shaft being contactable with said diaphragm, and said actuation shaft being axially moveable back and forth to control the positioning of said diaphragm between said fully closed and said fully open positions;an electrical induction coil linked to said actuation shaft such that a decrease in the current passing into said induction coil will cause said shaft to advance in the distal direction and an increase in the current passing into said induction coil will cause said shaft to retract in the proximal direction;means for determining airway pressure;a microprocessor controller connected to said means for determining airway pressure, said controller being provided with a positive expiratory pressure setting, and said controller being connected to said induction coil and adapted to emit control signals to said induction coil to control the movement of said actuation shaft in response to the current airway pressure, thereby maintaining the present amount of positive expiratory pressure;a radio frequency transponder database containing flow characterisation data for the means for determining the flow rate of expiratory gas passing out of said exhalation valve;said controller being further connected to said means for determining the flow rate of expiratory gas passing out of said exhalation valve and being equipped to receive radio frequency input of the characterisation data contained in the radio frequency transponder database, and to utilise such data to determine the instant flow rate of expiratory gas passing out of said exhalation valve.
BR9509306A 1994-10-14 1995-07-05 Ventilation device with rotary drag compressor to ventilate lungs of mammalian patient drag compressor exhalation valve to control expiratory gas flow process to provide pulmonary ventilation ventilation device with rotary drag compressor to distribute inspiratory gas flow device exhalation valve for mixing oxygen and flow transducer for measuring fluid flow rate BR9509306A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32417294A 1994-10-14 1994-10-14
PCT/US1995/008499 WO1996011717A1 (en) 1994-10-14 1995-07-05 Portable drag compressor powered mechanical ventilator

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BR9509306A true BR9509306A (en) 1997-12-23

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BR9509306A BR9509306A (en) 1994-10-14 1995-07-05 Ventilation device with rotary drag compressor to ventilate lungs of mammalian patient drag compressor exhalation valve to control expiratory gas flow process to provide pulmonary ventilation ventilation device with rotary drag compressor to distribute inspiratory gas flow device exhalation valve for mixing oxygen and flow transducer for measuring fluid flow rate

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US (9) US5881722A (en)
EP (4) EP1205206B1 (en)
JP (1) JP3502389B2 (en)
AT (4) ATE277660T1 (en)
BR (1) BR9509306A (en)
CA (1) CA2523043C (en)
DE (4) DE69535839D1 (en)
ES (3) ES2207623T3 (en)
WO (1) WO1996011717A1 (en)

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US5881722A (en) 1999-03-16
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EP1205206A2 (en) 2002-05-15
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